Brother MFC-9840CDW Service Manual

Confidential
1-34
Error code C4
Tray 2 Error
Take out Tray 2 and push it back in firmly.
Tray 2 (LT) plate-up function malfunction
User Check
- Check if Tray 2 (LT) is installed into the machine.
Step Cause
Remedy
1 Connection failure between
the machine and LT
connector
Replace the connector.
2 Harness connection failure of
plate motor ASSY LT
Check the harness connection of the plate motor
ASSY LT and reconnect it.
3 Harness connection failure of
LT paper feed frame unit
Check the harness connection of the LT paper
feed frame unit and reconnect it.
4 LT paper feed frame unit
failure
Check the sensor performance following the
procedure described in “Maintenance mode 32”. If
any problem occurs, replace the LT paper feed
frame unit.
5 Engine PCB failure Replace the engine PCB ASSY.
Error code C5
EL Error
Open the Front Cover and close it again.
EL lamp electrifying failure
User Check
- Open and close the front cover.
Step Cause
Remedy
1 Dirt on electrodes on drum
unit and front cover
Clean both electrodes.
2 EL lamp PCB failure Replace the drum unit.
3 EL lamp PCB harness broken Replace the front door unit ASSY.
4 Engine PCB failure Replace the engine PCB ASSY.
Error code C6
Toner Error
A Toner is not detected. Put all the Toner Cartridges back in
correctly.
Toner cartridge mis-dividing
Step Cause
Remedy
1 Harness connection failure of
develop release motor
Check the harness connection of the develop
release motor and reconnect it.
2 Develop release sensor PCB
failure
Replace the develop release sensor PCB ASSY.
3 Engine PCB failure Replace the engine PCB ASSY.

Brother MFC-9840CDW Specifications

General

Print technology	Laser
Maximum resolution	600 x 2400 DPI
Economical printing	Yes
Time to first page (black, normal)	16 s
Time to first page (color, normal)	17 s
Print speed (black, normal quality, A4/US Letter)	20 ppm
Scan to	E-mail, FTP, OCR, USB
Scanner type	Flatbed scanner
Grayscale levels	256
Input color depth	48 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
N-in-1 copy function (N=)	4, 9, 16, 25
Copy speed (black, normal quality, A4)	16 cpm
Faxing	Mono faxing
Fax memory	400 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	35 sheets
Internal memory	128 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	54.5 dB
Custom media sizes	(69.9 - 216mm) - (116 - 406.4mm)
Dimensions (WxDxH)	530 x 539 x 520 mm
Networking features	10/100Base-TX
Wireless technology	IEEE 802.11b/g
All-in-one functions	Copy, Fax, Scan
Maximum internal memory	0.640 GB
Color all-in-one functions	copy, print, scan
Media weight (tray 1)	60 - 105g/m2
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Security algorithms	LEAP
Supported network protocols (IPv4)	TCP/IP (IPv4 & IPv6)
Standard interfaces	USB 2.0
USB 2.0 ports quantity	1
Bundled software	ScanSoft PaperPort (Win) NewSoft Presto! PageManager (Mac)
Power consumption (PowerSave)	36 W
Power consumption (average operating)	515, 100 W
Package weight	45800 g
Digital sender	No
Maximum duty cycle	3000 pages per month
Market positioning	Business